6541444326040 has 48 divisors (see below), whose sum is σ = 15937513041600. Its totient is φ = 2415302517888.

The previous prime is 6541444326013. The next prime is 6541444326049. The reversal of 6541444326040 is 406234441456.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6541444326049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 483827880 + ... + 483841399.

It is an arithmetic number, because the mean of its divisors is an integer number (332031521700).

Almost surely, 2^{6541444326040} is an apocalyptic number.

It is an amenable number.

6541444326040 is an abundant number, since it is smaller than the sum of its proper divisors (9396068715560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6541444326040 is a wasteful number, since it uses less digits than its factorization.

6541444326040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967669316 (or 967669299 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 43.

Adding to 6541444326040 its reverse (406234441456), we get a palindrome (6947678767496).

The spelling of 6541444326040 in words is "six trillion, five hundred forty-one billion, four hundred forty-four million, three hundred twenty-six thousand, forty".